Olivetti PF-720, Руководство по обслуживанию

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3LM
1-4-3
(3) Paper misfeeds
Problem Causes/check procedures Corrective measures
(1)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from cassette
3).
Jam code 12 Paper is extremely curled. Change the paper.
Check if the paper feed pul-
ley, forwarding pulley and
separation pulley of cas-
sette 3 are deformed. Check visually and replace any deformed pulleys.
Broken feed switch 3 actua-
tor. Check visually and replace switch.
Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
Check if PF paper feed
clutch 1 malfunctions. Run maintenance item U247 and select PF paper feed clutch 1 on
the touch panel to be turned on and off. Check the status and rem-
edy if necessary.
Electrical problem with PF
paper feed clutch 1. Check (see page 1-4-7).
(2)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from cassette
4).
Jam code 13 Paper is extremely curled. Change the paper.
Check if the paper feed pul-
ley, forwarding pulley and
separation pulley of cas-
sette 4 are deformed. Check visually and replace any deformed pulleys.
Broken PF feed switch
actuator. Check visually and replace switch.
Defective PF feed switch. With 5 V DC present at YC3-7 on the PF main PWB, check if YC3-
5 on the PF main PWB remains low or high when the PF feed
switch is turned on and off. If it does, replace the PF feed switch.
Check if PF paper feed
clutch 2 malfunctions. Run maintenance item U247 and select PF paper feed clutch 2 on
the touch panel to be turned on and off. Check the status and rem-
edy if necessary.
Electrical problem with PF
paper feed clutch 2. Check (see page 1-4-7).
(3)
A paper jam in the
paper feed section is
indicated during
copying (misfeed in
paper feeder vertical
paper conveying sec-
tion).
Jam code 19 Broken feed switch 3 actua-
tor. Check visually and replace switch.
Defective feed switch 3. Run maintenance item U031 and turn feed switch 3 on and off
manually. Replace the switch if indication of the corresponding
switch on the touch panel is not displayed in reverse.
Y1120 2 0- 4 Service Manual